Cracks tensor theory

Bivalent cootiinium approach with FEM meibod 11344 clemeots, 4216 nodes), botnogeatzation (scale 25 x 25 meters) by Crack Tensor theory (Oda. 19S6)... 

Two homogenization scales were obtained by two teams using the same Crack Tensor theory, and the validity of representative elementary volume (REV) and its relationship to the size of finite element are unresolved, and remain an open problem. 

Guvanasen, V. and T. Chan, Upscaling the THM properties of a fractured rock nmss using a modified crack tensor theory, this volume, 2004. 

The equivalent continuum model used for the JNC model is developed by combining the crack tensor theory proposed by Oda (1986) and the constitutive model by Barton et al. (1985). This model simulates the anisotropy of the media by crack tensor theory and the non-linear mechanical and hydraulic behavior by the Barton-Bandis (BB) model. Thus, the properties are changed heterogeneously and anisotropically through the excavation process. The constitutive law is incorporated into the coupled THM code, THAMES (Ohnishi, et al., 1985). 

UPSCALING THE THERMOHYDROMECHANICAL PROPERTIES OF A FRACTURED ROCK MASS USING A MODIFIED CRACK TENSOR THEORY... 

The material properties to be homogenized and upscaled are drawn from Biot s theory extended for non-isothermal consolidation (Guvanasen and Chan 2000). The modified crack tensor theory of Oda (1986) has been modified to include other transport and thermoelastic properties specified by Guvanasen and Chan (2000). 

Permeability Tensor A study by Long et al. (1982) suggested that rock mass behaves more like a porous medium if many fractures make a sufficient number of flow paths. Using a modified form of Oda s crack tensor theory (Oda 1986), the permeability of the homogenized material is given by ... 

Chemical concepts of catalytic cracking, 4 1 Chemical feedstock, history, 30 161-162 Chemical shift, 42 120-122 anisotropy, 33 204-205, 42 123-124 computational chemistry, 42 129-137 molecular structure and, 42 129-133 tensor, 42 124-125, 133-135 theoretical calculations, 42 133-137 theory, 42 122-129 in XAS, 34 228, 231-232 to describe change in Fermi energy of metal, 34 232... 

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